@using Sandbox;
@using Sandbox.UI;
@inherits PanelComponent
@namespace Sandbox

@if (so == null)
    return;

<root>
	
    <div class="left-panel">

        <h1>Free Cam</h1>

        <div class="row">
            <h2>Timescale</h2>
            <SliderControl Property="@so.GetProperty( nameof(Timescale) )"></SliderControl>
        </div>

        <div class="row">
            <h2>Camera Smoothing</h2>
            <SliderControl Property="@so.GetProperty(nameof(CameraSmoothing))"></SliderControl>
        </div>

        <h1>Depth Of Field</h1>

        <div class="row">
            <h2>Blur Amount</h2>
            <SliderControl Property="@so.GetProperty(nameof(DofBlur))"></SliderControl>
        </div>

        <div class="row">
            <h2>Focal Distance</h2>
            <SliderControl Property="@so.GetProperty(nameof(DofFocalDistance))"></SliderControl>
        </div>

        <div class="row">
            <h2>Focal Range</h2>
            <SliderControl Property="@so.GetProperty(nameof(DofFocalRange))"></SliderControl>
        </div>

    </div>

    

</root>

@code
{
    SerializedObject so;

    [Range(0.0f, 2.0f), Step( 0.1f )]
    public float Timescale
    {
        get => field;
        set 
        {
            field = value;

            if (!Networking.IsHost)
                return;

            Scene.TimeScale = value;
        }
    }

    [Range(0.0f, 1.0f), Step(0.1f)]
    public float CameraSmoothing { get; set; } = 0.7f;


    [Range(0.0f, 1.0f), Step(0.01f)]
    public float DofBlur { get; set; } = 0.0f;

    [Range(0.0f, 1000.0f), Step(1f)]
    public float DofFocalDistance { get; set; } = 300.0f;

    [Range(0.0f, 1000.0f), Step(1f)]
    public float DofFocalRange { get; set; } = 500.0f;

    protected override void OnStart()
    {
        so = TypeLibrary.GetSerializedObject(this);

        base.OnStart();
    }

    protected override void OnEnabled()
    {
        base.OnEnabled();

        Timescale = Timescale;
    }

    public void Update( bool isActive )
    {
        SetClass("active", isActive);

        var volume = GetOrAddComponent<PostProcessVolume>();
        volume.SceneVolume = new Volumes.SceneVolume { Type = Volumes.SceneVolume.VolumeTypes.Infinite };
        volume.Priority = 1000;

        UpdateDepthOfField();
    }

    void UpdateDepthOfField()
    {
        var dof = GetOrAddComponent<DepthOfField>();
        dof.Enabled = DofBlur > 0.01f;
        dof.BlurSize = DofBlur * 50.0f;
        dof.FocalDistance = DofFocalDistance;
        dof.FocusRange = DofFocalRange;
    }
}